It turned out to be a family playing with a rather modern toy, yet Honduras coach Jorge Luis Pinto has refused to let go of the "embarrassing" drone incident causing drama ahead of Wednesday's World Cup qualifying finale.
Pinto was not a happy man on his first day in Australia and wanted all media removed from the stadium, despite FIFA regulations requiring at least 15 minutes "open for vision".
Australia have spared no expense in giving their players the best chance of qualifying for next year's finals in Russia, bringing their players home as early as possible on a chartered plane kitted out with high-tech recovery equipment.
It was a bit disappointing in that regard, but come this game on Wednesday, we'll be fully prepared and we'll take our chances this time.
"Just like VAR [video assistant referee] has made it into football, drones have made their way into espionage".
The team's staff filmed the drone as it flew over the players and were quick to suggest it was deployed by the Australians to try and gain an insight into their tactics and preparations. "It just takes some of the merit away from the fair play and sporting event that will be held tomorrow".
There was no disguising, though, his desire for Australia's campaign to end in triumph in front of more than 70,000 fans at the Olympic Stadium.
"It's an embarrassing incident".
According to Honduran newspaper La Prensa, Honduras team management sent up drones of their own in 2016 to ensure no unauthorised parties were monitoring their training sessions.
Postecoglou has foreshadowed changes for the return match and so has Pinto, saying there could be up to three changes for Honduras with veteran skipper Maynor Figueroa and pacy winger Alberth Elis coming back.
The attacker was an unused substitute in the frustrating first-leg but told reporters earlier in the week that he was ready to put his body on the line. We are just hoping for a good game tomorrow.
"We are very comfortable". We're facing a balanced side and we need to be aggressive.
Moore said Wednesday's clash, kicking off at 8pm, is Australia's biggest since the famous 2005 playoff success against Uruguay, which came after John Aloisi struck the winning penalty in a shootout dominated by Mark Schwarzer's heroic saves.
Changes to the lineup that started at the Estadio Olimpico Metropolitano should be expected, either to inject new blood or, as Postecoglou has put it, to put the pedal down.